Energy Saving Street Light Housing Wholesale caution that LED street lights generally only require replacement of controllers and batteries, but some street lights installed... moreEnergy Saving Street Light Housing Wholesale caution that LED street lights generally only require replacement of controllers and batteries, but some street lights installed earlier have relatively large light source power, have low light source efficiency and high self-loss, so the batteries that need to be replaced are also relatively large, and replacing batteries and controllers is more expensive than new systems, so compare based on price and product. We suggest that customers change the light source, because the technology is developing, products are also updated, LED light source light efficiency has greatly improved, LED light source light efficiency than in previous years, of course, the current 30W light source can be replaced by 15W, of course, by the official manufacturer of high-power LED lights produced by the number of beads in the case of 150 to 160 lumens, and the market of the patch lamp bead efficiency is low, the quality is also relatively poor. Therefore, it is necessary to find a... less